Samsung Smart Button Press Not Working Correctly

Normally a good suggestion, however it's not going to solve anything in this particular case.

That's a Zigbee mesh issue. Nothing you can do will fix that, except wait for the next update which is likely to have the improvements that will correct the duplicate event you are seeing.

Correct. It increases the size of the source routing table which has to be large enough to hold all devices. This will effectively enable many to one routing. My theory as to why the duplicate events are being received is because there is a lot of routing requests going on and the timing of those requests is causing the end devices to retransmit its messages more than once.